Attachment for fanning-mills.



1. WOIACH.

ATTACHMENT FOR FANNING MILLS. APPL1CATION HLED SEPT. 30| 1916.

Patented Feb,12,1918.

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ATTACHMENT ron TANNTNG mms.

APPLICATION FILED SEPT- 30. |916.

1,2565415. Patented Teme, 191s.

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UNTTE JOSEPH woIACr'i, or GRACEVILLE, MrNNEso'rA.

ATTACHMENT ron rAivNrNG-MILLS.

Application led September 30, 1916.

To all whom it 'may concern.'

Be it known that I, JOSEPH Women, a citizen of the United States,residing at Graceville, in the county of Bigstone and State ofMinnesota, have invented new and useful Improvements in Attachments forFanning-Mills, of which the following is aI specification.

This invention relates to attachments for fanning mills, and it has forits Vobject to produce a device or attachment of simple and ,improvedconstruction which may be readily attached to and used in connectionwith a fanning mill of conventional construction for the purpose ofseparating wild oats from grain that has been passed through the mill. A

A further object of the invention is to produce a simple and improvedattachment for separating wild oats, the same embodying in itsconstruction a conveyer over which the grain will pass, said conveyerhaving an apron to which wild oats will adhere and from which the wildseed is removed by scraping, while the desired seed will roll off theconveyer to a point of deposit.

A further object of the invention is to provide simple and improvedmeans for depositing the seeds to be cleaned on the conveyer.

With these and other ends in View which will readily appear as thenature of the invention is better understood, the same consists in theimproved construction and novel arrangement and combination of partswhich will be hereinafter fully described and particularly pointed outin the claim.

In the accompanying drawings has been illustrated a simple and preferredform of the invention, it being, however, understood that no limitationis necessarily made to the precise structural details therein exhibited,but that changes, alterations and modifications within the scope of theclaim may be resorted to when desired.

In the drawings,- t

Figure 1 is a top plan view of a device constructed in accordance withthe invention showing also a portion of a fannmg mill with which it isconnected.

Fig. 2 is a longitudinal sectional view taken on the line 2-2 in Fig. 1.

Fig.' 3 is a side elevation.

Fig. a is a rear elevation.

Specification of Letters Patent.

Patented Feb. 12, 1918.

Serial No. 123,126.

Fig. 5 is a transverse vertical sectional view taken on the line 55 inFig. 1.

Corresponding parts in the several figures are denoted by likecharacters of reference.

The improved device in its preferred embodiment includes an elevatorgenerally designated vby A. and two conveyers designated by B, C.

The elevator frame includes side members l5 which are suitably connectedand spaced apart by cross bars 16, said side bars being provided ontheir inner side faces with supporting cleats 17 for the apron 1S whichis guided over rollers 19, 20 at the lower and upper ends of the frame,respectively, the shaft of the upper roller being mounted on slidablysupported boxes 21 which may be adjusted by means of adjusting screws 22for the purpose of tensioning the apron. The latter, which is composedof a suitable grade of canvas, is provided at suitable intervals withslats 23, said apron being supported intermediate the rollers on thecleats 17.

The conveyers B and C are substantially of similar construction, eachcomprising a frame including side members 24: which are connectedtogether and spaced apart by a presser board 25, the same being of athickness substantially equal to the diameter of the rolls 26, 27 overwhich the apron 28 is guided. The lower shaft 26 of each conveyer issupported in slidable boxes 29 which are adjustable by screws 30 for thepurpose of tensioning the canvas. Guide cleats 31 are provided for'theupper leads of the aprons 2S. The side members 24- of the frame C areprovided with straps or arms 32 secured on the top faces thereof andslidably engaging keepers 33 on the bottom faces of the side members ofthe frame B., thus enabling the frames to be adjustably connected so asto vary the extent to which the apron of the frame B will overlap oroverhang the apron of the frame C. The aprons of the conveyers B and Care preferably made of textile material having a somewhat fleecy surfaceso that awns and hairs of the wild oats will become entangled therewithand adhere thereto. Each of the frames B and C is also provided with across bar 31 secured on the under faces of the side members thereof andextending across the apron, said cross upper end with brackets 36 inwhich the shaft of the upper roller 27 of the conveyer B is supportedfor rotation. Braces 87 are utilized for adjustably connecting the frameof the conveyer C with the frame of the elevator A, said braces beingpivotally connected with the con'veyer frame C at 38, and said bracesbeing provided with slots 39 for the reception of clamp screws 40wherebythey are adjustably connected with the elevator frame A.

The conveyer frame A is connected with the elevator frame in such a.manner that the apron of the elevator will discharge-into a hopper 41carried by the conveyer frame B and Vwhich in turn discharges on theapron of said conveyer.

In applying the improved attachment to a fanning mill, the shaft of thelower roller 19 of the elevator A is pivotally connected with the frameof the fanning mill, a portion of which is indicated at 42, in such aposition that the bottom screen 43 of the fanning mill will discharge onthe elevator apron 18. The shaft of the roller 19 is provided with asprocket wheel 44 receiving` motion from the fan shaft 45 of the mill.The upper roller 27 of the conveyer B receives motion from the shaft ofthe bottom roller 19 of the elevator by means of a twisted belt 46, andthe bottom conveyer C receives motion from the top conveyer B through atransmission belt 47. The aprons of the ele- Copies of this patent :maybe obtained for five cents each, by addressing the elevated thereby anddischarged into the hopper 41, passing from thence to the top lead ofthe conveyer B. The good seed, being comparatively small, will rolldownward over the apron until intercepted by -the shield or deflector35, whereby it is thrown upon the apron of the conveye'r C. The Wildseeds will adhere to theaprons of the conveyers and will be scraped fromthe same by the cross bars 34. The good seeds will roll from the apronof the conveyer C- to a place of deposit. v

As will be seen from the foregoing description taken in connection withthe drawings heretoannexed, the present invention provides a simple andeffective attachment which may be readily applied to any fanning mill ofconventional construction and -whereby the wild oats and similar noxiousseeds may be separated from the valuable grain. Y

Having thus described they invention, what is claimed as new, isz- In adevice of the class described, the combination with an elevator, of aconveyer swingingly connected therewith to receive material dischargedover the elevator, said conveyer being inclined oppositely to theinclination of the elevator, keepers Yon the frame of the conveyer, anda secondconveyer having arms slidably engaging the keepers, enablingsaid second conveyer to be variously projected Vwith respect to thelirst mentioned conveyer, the first mentioned conveyer discharging uponthe second conveyer.

In testimony whereof I affix my signature.

JOSEPH WOIACH.

Commissioner of Patents,

Washington, D. C.

